package com.lt.jvm;


import java.io.IOException;
import java.net.InetSocketAddress;
import java.nio.channels.SelectionKey;
import java.nio.channels.Selector;
import java.nio.channels.ServerSocketChannel;
import java.util.HashMap;
import java.util.Iterator;
import java.util.Set;
import java.util.concurrent.ConcurrentHashMap;

/**
 * Copyright (C), 2006-2010, ChengDu ybyainfo. Co., Ltd.
 * FileName: Test.java
 *
 * @version 1.00
 * @Author lt
 * @Date 2020/5/20 11:29
 **/
public class Test {
    public static void main(String[] args) {
        ConcurrentHashMap concurrentHashMap = new ConcurrentHashMap();
//        HashMap
    }
}
